or

The boolean 'or' function returns true if either of its two boolean arguments are true.

bool or <bool:arg1> <bool:arg2>

True if either arg1 or arg2 are true, and false if neither are true.

// create two new boolean variables...
bool b1
bool b2

// ...and set one to true and one to false
set b1 true
set b2 false

// call 'or b1 b2', and pipe result to event log via echo
echo <zs:or b1 b2>

… the output of which is written to the event log by echo as:

true

Unlike other languages such as C/C++, both arguments to the or function are always evaluated in ZeoScript, regardless of whether the answer can be determined from the first argument alone.

• not
• xor
• and